---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-26-009551"
form_type: "8-K"
ticker: "SHPH"
cik: "0001757499"
company_name: "Shuttle Pharmaceuticals Holdings, Inc."
filed_at: "2026-03-10T23:59:59+00:00"
generated_at: "2026-05-15T16:48:04.310102+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Shuttle Pharmaceuticals prices $3.5M public offering of common stock and pre-funded warrants

## Summary
- Gross proceeds of $3.5M from 2,238,800 shares and pre-funded warrants for 4,761,200 shares.
- Pre-funded warrants exercisable at $0.001 per share with 4.99% beneficial ownership limitation.
- Up to $1.5M of net proceeds allocated for marketing; remainder for working capital.
- E.F. Hutton acted as placement agent; cash fee of 4.0% of gross proceeds plus expenses.
- Offering closed March 9, 2026; registered on Form S-1 effective February 17, 2026.

## SEC filing metadata
- accession: 0001493152-26-009551
- form_type: 8-K
- ticker: SHPH
- cik: 0001757499
- company_name: Shuttle Pharmaceuticals Holdings, Inc.
- filed_at: 2026-03-10T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1757499/000149315226009551/0001493152-26-009551-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1757499/000149315226009551/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-26-009551
- JSON: https://secwatch.observer/filing/0001493152-26-009551.json
- Plain text: https://secwatch.observer/filing/0001493152-26-009551.txt

## Source-grounded claims
- claim_id: 7cbf7e2b1702b95f8e8e6b283949aa3b00c5f734
  claim: Shuttle Pharmaceuticals Holdings, Inc. entered into Placement Agency Agreement with E.F. Hutton & Co. valued at Placement agency agreement on a reasonable best-efforts basis, with cash fee of 4.0% of gross procee (effective 2026-03-05).
  evidence_excerpt: On March 5, 2026, the Company entered into a Placement Agency Agreement (the “Placement Agency Agreement”) with E.F. Hutton & Co., as placement agent (the “Placement Agent”), pursuant to which the Placement Agent agreed to act as the Company’s exclusive placement agent in connection with the Offering.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1757499/000149315226009551/0001493152-26-009551-index.htm
- claim_id: aa459ee8b176742a58ca684a81e48388a7d74ec0
  claim: Shuttle Pharmaceuticals Holdings, Inc. entered into Securities Purchase Agreement with the purchasers named therein valued at The Company agreed to issue and sell 2,238,800 shares of common stock and pre-funded warrants to pur (effective 2026-03-05).
  evidence_excerpt: In connection with the Offering, the Company entered into a Securities Purchase Agreement, dated March 5, 2026 (the “Purchase Agreement”), by and among the Company and the purchasers named therein, pursuant to which the Company agreed to issue and sell the shares of Common Stock and Pre-Funded Warrants.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1757499/000149315226009551/0001493152-26-009551-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.